Vector Meson Dominance as the first order of a sequence of Padé Approximants
Abstract
The use of Padé Approximants for the analysis of the pion vector form-factor is discussed and justified in this talk. The method is tested first in a theoretical model and applied then on real experimental data. It is shown how the Padé Approximants provide a convenient and reliable framework to incorporate both low and high energy information in the euclidean region, leading to improved determinations of the low energy parameters such as, e.g., the quadratic radius <r>Vπ.
- Publication:
-
Nuclear Physics B Proceedings Supplements
- Pub Date:
- January 2009
- DOI:
- 10.1016/j.nuclphysbps.2008.12.037
- arXiv:
- arXiv:0809.1863
- Bibcode:
- 2009NuPhS.186..157S
- Keywords:
-
- High Energy Physics - Phenomenology
- E-Print:
- 4 pages, 3 figures, espcrc2 style. To appear in the proceedings of the 14th International QCD Conference, QCD 08, 7-12 July 2008, Montpellier (France)